The Brake Drum, cataloged under National Stock Number 2530-00-803-9591, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. The manufacturer of record is Fwd Seagrave Holdings Lp. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-803-9591 |
| Primary Part Number | 531027 |
| Item Name | Brake Drum |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Fwd Seagrave Holdings Lp |
| Status | ACTIVE |
| Mounting Hole Quantity | 8 |
| FSC Application Data | BRAKE SYSTEMS,VEHICULAR |
| Adjustment Hole | NOT INCLUDED |
| Balancing Pad | NOT INCLUDED |
| Mounting Hole Spacing | EQUALLY SPACED ON 14.625 IN. BOLT CIRCLE IN |
| Braking Surface Width | 5.870 INCHES NOMINAL IN |
| Inspection Hole | NOT INCLUDED |
| Mounting Hole Diameter | 0.656 INCHES NOMINAL IN |
| Overall Outside Diameter | 18.750 INCHES NOMINAL IN |
| Braking Surface Location | INTERNAL |
| Oil Drain Hole | NOT INCLUDED |
| Center Hole Diameter | 13.376 INCHES MINIMUM AND 13.378 INCHES MAXIMUM IN |
| Braking Surface Diameter | 16.510 INCHES MINIMUM AND 16.515 INCHES MAXIMUM IN |
| Material | IRON CAST OVERALL |
| Cooling Fin | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 531027 PRIMARY | Fwd Seagrave Holdings Lp (USA) |
NSN 2530-00-803-9591 is a Brake Drum, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-803-9591 has 1 manufacturer part number on file: 531027 (Fwd Seagrave Holdings Lp).
Key specifications for 531027: Mounting Hole Quantity: 8; FSC Application Data: BRAKE SYSTEMS,VEHICULAR; Adjustment Hole: NOT INCLUDED; Balancing Pad: NOT INCLUDED. 15 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.